不同月龄Beagle犬的心电图研究

对不同月龄的６６只健康Ｂｅａｇｌｅ犬采用３％戊巴比妥钠麻醉，进行了９个导联的心电图描记和分析。结果表明：健康Ｂｅａｇｌｅ犬为窦性心律：３０月龄以下育成犬心律平均为１７３．８次／分，种用犬（５０月龄以上）心率平均为１３１．７次／分；二者经统计学处理，有极显著差异。Ｐ波间期平均为０．０５１±０．０１３Ｓｅｃ。Ｐ波振幅平均０．０６１ｍｖ，Ｐ波直立在导联中占９２．６％，在ａＶＲ导联中Ｐ波倒置率９８．７５％；ＱＲＳ波间期均值为：０．０２７±０．００５Ｓｅｃ。在Ⅱ导联中范围为０．０２－０．０４Ｓ－ｅｃ。在各导联中，Ⅰ导联以ｒ波为主（５１．８５％），Ⅱ导联以Ｒｓ波多见（５０％），Ｑｒ波和ｑｒ波在ａＶＲ导联中出现较多（３８．８９％，３１．４８％）。Ｔ波在Ⅰ、Ⅱ、Ⅲ、ａｖＦ、Ⅴ１、Ⅴ２、Ⅴ３导联中直立为主，在ａｖＬ导联中倒置多见（８９．２％，７３．１％）。Ｔ波方向与ＱＲＳ波一致。Ｔ波振幅平沟０．１３７ｍｖ。Ｐ－Ｒ间期范围在此０。０７５－０．１４０Ｓｅｃ。在９个导联中，无明显Ｓ－Ｐ段偏移。Ｐ－Ｐ间隔＜０．０１Ｓｅｃ。     

芬太尼麻醉手术中血糖和胰岛素的变化

目的：观察芬太尼麻醉手术中机体的血糖（ＣＬＵ）和胰岛素（ＩＮＳ）的变化。方法：Ｔ例ＡＳＡⅠ－Ⅱ择期上腹部手术患者，诱导后持续恒定静脉内输入芬太尼维持到手术缝皮后为止，３组剂量分别为每小时每公斤体重２．５、５、７．５μｇ。分诱导前（Ｔ１）、手术７０ｍｉｎ（Ｔ２）、术毕（Ｔ３）３次采静脉血，测血糖和胰岛素值。用ＳＰＳＳ软件包进行数据处理，采用方差分析和相关分析。结果：不同剂量的３组在手术７０ｍｉｎ时、     

碱性蛋白酶Alcalase水解WGP制备ISWGPH的研究

本文采用ｐＨ－ｓｔａｔ法测定ＷＧＰ的水解度。正交实验确定了Ａｌｃａｌａｓｅ水解ＷＧＰ的最佳工艺条件为：Ｔ＝５０℃；ｐＨ－８．５；「Ｓ」＝１０％；「Ｅ／Ｓ」＝２４ＡＵ／ｋｇ蛋白质；ｔ＝３００ｍｉｎ。将ＷＧＰ水解物的Ｐ 到４．０，离 离后上清液，经活性碳处理处理和干燥后得到了等电点可溶性ＷＧＰ水解－ＩＳＧＰＨ。     

速冻蔬菜的最适烫漂时间与其过氧化物酶活性测定研究

本试验以各种蔬菜：菠菜、芹菜、花菜、芦笋、土豆、大头菜、蒜苗中的过氧化物酶活性为研究对象：在不同温度下进行烫漂处理后其ＰＯＤ活力具有再生现象，于是确定在９５°Ｃ下烫漂得到不同蔬菜的最佳烫漂时间分别为菠菜１ｍｉｎ，蒜苗２．５ｍｉｎ，芹菜３ｍｉｎ，芦笋４ｍｉｎ，青菜１．５ｍｉｎ，大头菜１．５ｍｉｎ，花菜２．５ｍｉｎ，土豆３ｍｉｎ；还进一步比较研究了添加柠檬酸、Ｎａ＿２ＣＯ＿３、ＣｕＳＯ＿４等化学药品对蔬菜烫漂处理中ＰＯＤ活性的影响，结果用适宜浓度的Ｎａ＿２ＣＯ＿３（１０￣（－５）Ｍ）或ＣｕＳＯ＿４（４．０×１０￣（－４）Ｍ）溶液烫漂处理具有护色和杀酶的协同效果。     

非晶态合金的自旋波激发与结构涨落及超精细场分布

本文研究了非晶态（ａ）－Ｆｅ－ＴＭ－Ｓｉ－Ｂ（ＴＭ＝Ｃｏ，Ｓｉ，Ｍｏ，Ｎｂ）合金从１．５Ｋ到３００Ｋ的磁化强度及室温穆斯堡尔谱，得到了成里温度Ｔｃ、饱和磁化强度σｓ（０）、自旋波颈度常数Ｄ及平均超精细场等。结果表明，（ａ）对于Ｆｅ８３Ｓｉ５Ｂ１２，当Ｎｂ，Ｍｏ与Ｓｉ，Ｃｏ取代Ｆｅ后，Ｆｅ－（Ｎｂ，Ｍｏ）－Ｓｉ－Ｂ的磁性质不同于Ｆｅ－（Ｓｉ，Ｃｏ）－Ｓｉ－Ｂ；（ｂ）ａ－Ｆｅ－（Ｍｏ，Ｎｂ，Ｃｒ，Ｗ，     

MC尼龙热降解动力学的研究

通过热重分析研究了ＭＣ尼龙（单体浇铸尼龙）在空气环境下的热氧降解过程和降解动力学，选用ＭＣ尼龙粉粒为样品，应用日本ＴＡＳ－１００型热分析仪，升温速率分别为５℃／ｍｉｎ、１０℃／ｍｉｎ、１５℃／ｍｉｎ加热到５００℃，得到ＴＧ—ＤＴＧ的数据和曲线。从所得到的结果推断出热氧降解过程中的反应机理是大分子链的无规断裂，反应为一级反应。用小泽丈夫法原理计算相应的反应活化能和反应动力学参数。     

锑－槲皮素络合物极谱吸附波的研究

在１×１０~（－２）ｍｏｌ／Ｌ。Ｈ＿２ＳＯ＿４，１×１０~（－５）ｍｏｌ／Ｌ。槲皮素，５％乙醇底液中得到了锑－槲皮素络合物还原峰，这是一个明显的络合物吸附极谱波。用其导数波可测定纯Ａｓ＿２Ｏ＿３中微量Ｓｂ。     

电位溶出分析法同时测定罐头食品中痕量铅锡

利用不除氧电位溶出分析法成功地测定了溶出电位相近的Ｐｂ、Ｓｎ两元素。以０．０５ｍｏｌ／Ｌ草酸为介质，调节溶液ＰＨ＝１．０，以溶解氧做氧化剂，静止溶出，两元素均有分高清晰的平台出现。Ｐｂ、Ｓｎ的线性范围分别为：２．０×１０－９～２．０×１０－７ｍｏｌ／Ｌ和２．０×１０－８～２．０×１０－６ｍｏｌ／Ｌ。当富集时间为４ｍｉｎ时，Ｐｂ、Ｓｎ的检测限分别为５．０×１０－１０ｍｏｌ／Ｌ和５．０×１０－９ｍｏｌ／Ｌ。此法已成功地应用于测定罐头食品中的痕量Ｐｂ、Ｓｎ。     

4－（8－氨基喹啉－5－偶氮）－苯磺酸钠的极谱行为研究

研究了４－（８－氨基喹啉－５－偶氮）－苯横酸钠（ＳＡＯＡＢＳ）的极谱行为。在０．０２ｍｌ／ＬＮＨ＿３·Ｈ＿２Ｏ－０．３６ｍｏｌ／ＬＮＨ＿４Ｃｌ的缓冲溶液中，ＳＡＱＡＢＳ产生两个明晰的阴极化极谱波，其二次导数波的峰电位分别为－０．５２Ｖ和－１．３０Ｖ（Ｖｓ．ＳＣＥ）。用ＳＡＱＡＢＳ的第一个波作为定量分析的基础，其线性范围为１．０×１０￣（－６）～８．０×１０￣（－５）ｍｏｌ／Ｌ。氧不干扰ＳＡＱＡＢＳ的测定。还研究了ＳＡＱＡＢＳ的电极过程及反应机理。     

神经外科手术中动脉与呼气末二氧化碳分压差稳定性的观察

观察神经外科手术过程中动脉和呼气末二氧化碳分压差值（Ｐａ－ＥＴＣＯ２）的稳定性。对３０例幕上肿瘤行择期肿瘤切除术的患者，于硬脑膜打开后，给予安氟醚１．１～１．５ＭＡＣ，将动脉内压维持在每小时１０±０．６７ｋＰａ。分别于麻醉前、气管插管后５ｍｉｎ、开颅后５ｍｉｎ、术中降压１ｈ和术终抽取动脉血行血气分析。对开颅超过３ｈ的１４例患者，则于３ｈ后再抽取１次动脉血样，同时记录呼气末二氧化碳分压（ＰＥＴＣＯ２）。在手术过程中ＰａＣＯ２平均值为４．２１±０．７７ｋＰａ，ＰＥＴＣＯ２平均值为３．８６±０．６６ｋＰａ，Ｐａ－ＥＴＣＯ２平均值为０．３３±０．６６ｋＰａ，ＰａＣＯ２与ＰＥＴＣＯ２显著相关（Ｐ＜０．０１）。ＰａＣＯ２、ＰＥＴＣＯ２和Ｐａ－ＥＴＣＯ２不同时间点之间无显著性差异。如能在麻醉后及早确定Ｐａ－ＣＯ２与ＰＥＴＣＯ２差值，术中监测ＰＥＴＣＯ２仍有一定价值     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

An affordable accurate evaluation of the binding conformations predicted by molecular docking studies in bio-system

Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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